6 worked GST/HST Account Setup case studies — the position a client typically comes to us with, what we do, and what it is worth. Each is an illustrative example built on the rules that apply to gst/hst account setup work, not a specific client's file.
Case Study 1 · Structure rebuilt
Reorganisation Completed Tax-Deferred, $19,000 Saved Each Year — Exempt-Supply Clinic, Saskatoon
Client: A health clinic making exempt supplies · Where: Saskatoon, Saskatchewan · Engagement: 5 weeks, fixed fee
Annual saving$19,000
Tax on reorganisationDeferred
Elections filedOn time
The situation — A health clinic making exempt supplies, Saskatoon, Saskatchewan
A health clinic making exempt supplies in Saskatoon, Saskatchewan had outgrown the structure it started with. HST charged at the home-province rate on sales into four different provinces was the immediate problem. The longer-term one was that the structure blocked the next step.
What we did for A health clinic making exempt supplies, Saskatoon, Saskatchewan
We mapped the current structure and modelled the target. Then we rebuilt the sales ledger by customer province and applied the correct place-of-supply rate to each stream. We filed corrected returns before the CRA opened a review. The tax-deferred elections were filed on time and the supporting valuations documented.
The result — A health clinic making exempt supplies, Saskatoon, Saskatchewan
The reorganisation completed without triggering tax, and the new structure saves approximately $19,000 a year while removing the exposure the old one carried.
Case Study 2 · Deadline rescue
Filed On Time From A Standing Start, $64,000 Penalty Avoided — Late GST/HST Registrant, Windsor
Client: A seller who crossed the registration threshold before registering · Where: Windsor, Ontario · Engagement: 4 weeks, fixed fee
Penalty avoided$64,000
Turnaround4 weeks
FiledOn time
The situation — A seller who crossed the registration threshold before registering, Windsor, Ontario
A seller who crossed the registration threshold before registering in Windsor, Ontario came to us 4 weeks before its filing deadline. The file came with a sales tax account filed annually while the CRA had moved the business to quarterly. A late filing would have triggered a penalty of roughly $64,000 before interest.
What we did for A seller who crossed the registration threshold before registering, Windsor, Ontario
We worked backwards from the deadline. We brought the nil and missing periods current so the account was clean before the refund claim was filed. We prioritised the items that actually gated the filing and deferred everything that did not.
The result — A seller who crossed the registration threshold before registering, Windsor, Ontario
The return was filed on time and complete. The $64,000 penalty never arose, and the compliance calendar we set means the next deadline is scheduled rather than discovered.
Case Study 3 · Cash and remittance control
Remittance Schedule Corrected, $19,000 Refunded — Mixed-Use Landlord, Vancouver
Client: A residential landlord also renting commercial space · Where: Vancouver, British Columbia · Engagement: 6 weeks, fixed fee
Overpayment refunded$19,000
Late remittances sinceZero
ScheduleAutomated
The situation — A residential landlord also renting commercial space, Vancouver, British Columbia
Remittances at a residential landlord also renting commercial space in Vancouver, British Columbia were consistently late by a few days. That was enough to trigger penalties every quarter. Behind it sat a registration threshold crossed nine months before anyone registered.
What we did for A residential landlord also renting commercial space, Vancouver, British Columbia
We filed the section 156 election for the related registrants, so supplies between them stopped carrying tax that served no purpose but cash-flow drag. Then we moved the remittance dates into a scheduled process rather than a monthly decision.
The result — A residential landlord also renting commercial space, Vancouver, British Columbia
Penalties stopped from the following remittance onwards, and $19,000 of overpaid instalments was refunded.
Case Study 4 · Scaling without breaking
Growth Handled Without A Missed Filing, $56,000 Freed — Mixed-Supply Practice, London
Client: A professional practice with exempt and taxable supplies · Where: London, Ontario · Engagement: 4 weeks, fixed fee
Cash freed$56,000
Compliance failuresNone
ReportingMonthly
The situation — A professional practice with exempt and taxable supplies, London, Ontario
A professional practice with exempt and taxable supplies in London, Ontario was opening in a second province. That meant different filing obligations and a different payroll regime. Management fees between two related registrants carrying tax that only ever went out and came back already sat in the file.
What we did for A professional practice with exempt and taxable supplies, London, Ontario
We set a defensible input tax credit allocation between taxable and exempt supplies and documented the method for future filings. We then put monthly reporting in place. That let the owner see the cash effect of growth while there was still time to act on it.
The result — A professional practice with exempt and taxable supplies, London, Ontario
Growth was absorbed without a compliance failure. $56,000 of cash was released, and the monthly reporting now flags a problem while it is still small.
Case Study 5 · Missed incentive claimed
$48,000 Credit Claim Filed And Accepted Without Adjustment — US-Bound Exporter, Moncton
Client: A manufacturer exporting to the US · Where: Moncton, New Brunswick · Engagement: 9 weeks, fixed fee
Claim value$48,000
AcceptedWithout adjustment
RepeatableAnnually
The situation — A manufacturer exporting to the US, Moncton, New Brunswick
A manufacturer exporting to the US in Moncton, New Brunswick assumed the credits did not apply to a business its size. HST charged at the home-province rate on sales into four different provinces meant they had applied all along.
What we did for A manufacturer exporting to the US, Moncton, New Brunswick
We identified the qualifying activity and built the documentation to support it. Then we backdated the registration to the date the business stopped being a small supplier, remitted the tax owing, and applied for relief on the penalty portion.
The result — A manufacturer exporting to the US, Moncton, New Brunswick
$48,000 recovered. Because the eligibility analysis is on file, the same claim can be repeated each year with a fraction of the effort.
Case Study 6 · Backlog brought current
7 Years Filed, $91,000 Removed From The Assessed Balance — Freight Brokerage, Mississauga
The situation — A freight brokerage, Mississauga, Ontario
A freight brokerage in Mississauga, Ontario had not filed for 7 years. The CRA had issued arbitrary assessments. The business was carrying a commercial property purchase closed on the assumption no tax applied because the vendor was not registered. That came on top of a growing interest balance.
What we did for A freight brokerage, Mississauga, Ontario
We started with the oldest year and worked forward so each year's closing balances fed the next. We tested the quick method against the account’s actual input tax credit history and stayed on the regular method where the credits were worth more. We filed the years in sequence rather than all at once.
The result — A freight brokerage, Mississauga, Ontario
Every year is now filed and assessed on actual figures. The notional assessments were vacated and $91,000 of the estimated balance came off, with a payment arrangement covering the rest.
Reviewed by Udit Gupta, Founder and Tax Accountant for the 2025 tax year. These case studies are illustrative worked examples composed from the CRA rules that apply to this type of work, not specific client files; figures are representative and outcomes depend on your own facts.
